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linux-user: move openrisc cpu loop to openrisc directory 

No code change, only move code from main.c to
openrisc/cpu_loop.c.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180411185651.21351-10-laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2018-04-11 20:56:41 +02:00
parent 0ec0f01c9d
commit 1ef7bca2e7
2 changed files with 89 additions and 96 deletions
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96
linux-user/main.c
View File

@ -149,92 +149,6 @@ void fork_end(int child)
}
}
#ifdef TARGET_OPENRISC
void cpu_loop(CPUOpenRISCState *env)
{
CPUState *cs = CPU(openrisc_env_get_cpu(env));
int trapnr;
abi_long ret;
target_siginfo_t info;
for (;;) {
cpu_exec_start(cs);
trapnr = cpu_exec(cs);
cpu_exec_end(cs);
process_queued_cpu_work(cs);
switch (trapnr) {
case EXCP_SYSCALL:
env->pc += 4; /* 0xc00; */
ret = do_syscall(env,
cpu_get_gpr(env, 11), /* return value */
cpu_get_gpr(env, 3), /* r3 - r7 are params */
cpu_get_gpr(env, 4),
cpu_get_gpr(env, 5),
cpu_get_gpr(env, 6),
cpu_get_gpr(env, 7),
cpu_get_gpr(env, 8), 0, 0);
if (ret == -TARGET_ERESTARTSYS) {
env->pc -= 4;
} else if (ret != -TARGET_QEMU_ESIGRETURN) {
cpu_set_gpr(env, 11, ret);
}
break;
case EXCP_DPF:
case EXCP_IPF:
case EXCP_RANGE:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_ALIGN:
info.si_signo = TARGET_SIGBUS;
info.si_errno = 0;
info.si_code = TARGET_BUS_ADRALN;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_ILLEGAL:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLOPC;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_FPE:
info.si_signo = TARGET_SIGFPE;
info.si_errno = 0;
info.si_code = 0;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_INTERRUPT:
/* We processed the pending cpu work above. */
break;
case EXCP_DEBUG:
trapnr = gdb_handlesig(cs, TARGET_SIGTRAP);
if (trapnr) {
info.si_signo = trapnr;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
break;
case EXCP_ATOMIC:
cpu_exec_step_atomic(cs);
break;
default:
g_assert_not_reached();
}
process_pending_signals(env);
}
}
#endif /* TARGET_OPENRISC */
#ifdef TARGET_SH4
void cpu_loop(CPUSH4State *env)
{
@ -2442,16 +2356,6 @@ int main(int argc, char **argv, char **envp)
env->regs[31] = regs->r31;
env->sregs[SR_PC] = regs->pc;
}
#elif defined(TARGET_OPENRISC)
{
int i;
for (i = 0; i < 32; i++) {
cpu_set_gpr(env, i, regs->gpr[i]);
}
env->pc = regs->pc;
cpu_set_sr(env, regs->sr);
}
#elif defined(TARGET_RISCV)
{
env->pc = regs->sepc;

89
linux-user/openrisc/cpu_loop.c
View File

@ -21,6 +21,95 @@
#include "qemu.h"
#include "cpu_loop-common.h"
void cpu_loop(CPUOpenRISCState *env)
{
CPUState *cs = CPU(openrisc_env_get_cpu(env));
int trapnr;
abi_long ret;
target_siginfo_t info;
for (;;) {
cpu_exec_start(cs);
trapnr = cpu_exec(cs);
cpu_exec_end(cs);
process_queued_cpu_work(cs);
switch (trapnr) {
case EXCP_SYSCALL:
env->pc += 4; /* 0xc00; */
ret = do_syscall(env,
cpu_get_gpr(env, 11), /* return value */
cpu_get_gpr(env, 3), /* r3 - r7 are params */
cpu_get_gpr(env, 4),
cpu_get_gpr(env, 5),
cpu_get_gpr(env, 6),
cpu_get_gpr(env, 7),
cpu_get_gpr(env, 8), 0, 0);
if (ret == -TARGET_ERESTARTSYS) {
env->pc -= 4;
} else if (ret != -TARGET_QEMU_ESIGRETURN) {
cpu_set_gpr(env, 11, ret);
}
break;
case EXCP_DPF:
case EXCP_IPF:
case EXCP_RANGE:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_ALIGN:
info.si_signo = TARGET_SIGBUS;
info.si_errno = 0;
info.si_code = TARGET_BUS_ADRALN;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_ILLEGAL:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLOPC;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_FPE:
info.si_signo = TARGET_SIGFPE;
info.si_errno = 0;
info.si_code = 0;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_INTERRUPT:
/* We processed the pending cpu work above. */
break;
case EXCP_DEBUG:
trapnr = gdb_handlesig(cs, TARGET_SIGTRAP);
if (trapnr) {
info.si_signo = trapnr;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
break;
case EXCP_ATOMIC:
cpu_exec_step_atomic(cs);
break;
default:
g_assert_not_reached();
}
process_pending_signals(env);
}
}
void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
{
int i;
for (i = 0; i < 32; i++) {
cpu_set_gpr(env, i, regs->gpr[i]);
}
env->pc = regs->pc;
cpu_set_sr(env, regs->sr);
}